Camera Lens Button Mapping for Changing Shooting Attitudes

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Solution Overview

Problem

Existing camera systems with large and heavy lenses face operability issues due to changes in hand position and grip when the camera attitude changes, impairing the usability of buttons and functions.

Innovation Solution

An image pickup apparatus with an attitude sensor that detects changes in orientation and adjusts the functions assigned to buttons on the lens apparatus accordingly, ensuring optimal operability for the photographer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the camera has a large and heavy lens, then the image quality and optical performance are improved, but the position of the hand holding the camera changes with attitude changes, impairing button operability

Engineering Contradiction:
Improveimage qualityVSAvoidbutton operability
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent applies dynamics by making the button function assignments change dynamically based on the detected camera attitude. The control unit receives attitude information from the attitude detection unit and automatically reassigns functions to buttons according to the current orientation, ensuring that important functions remain accessible regardless of how the heavy lens changes the camera's balance and holding position.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the functional parameters of the buttons based on attitude parameters. When the attitude detection unit detects a change in camera orientation, the control unit modifies which functions are assigned to which buttons, adapting the operational interface to the new holding position caused by the heavy lens's effect on camera balance.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the camera attitude changes, then the shooting versatility is improved, but the hand position and grip change, making button operations difficult

Engineering Contradiction:
Improveshooting versatilityVSAvoidbutton operability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system dynamically adapts button functions based on real-time attitude detection. As the photographer changes shooting attitude (horizontal, vertical, tilted positions), the attitude detection unit continuously monitors orientation and the control unit reassigns button functions to match the new hand position, maintaining ease of operation across all versatile shooting positions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The buttons serve multiple functions depending on the camera attitude. The same physical button can be assigned to different functions based on the detected orientation, allowing the limited number of buttons to provide universal access to various operations regardless of which attitude the camera is held in, thus supporting shooting versatility without sacrificing operability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If buttons are arranged on the lens apparatus exterior, then the accessibility is improved, but the function assignment becomes fixed and inappropriate for different attitudes

Engineering Contradiction:
Improvebutton accessibilityVSAvoidfunction adaptability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent changes the functional parameters of the buttons based on attitude parameters. When the attitude detection unit detects a change in camera orientation, the control unit modifies which functions are assigned to which buttons, adapting the operational interface to the new holding position caused by the heavy lens's effect on camera balance.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system provides self-service by automatically detecting the camera attitude and reassigning button functions without requiring manual intervention from the photographer. The attitude detection unit and control unit work together to autonomously adapt the button assignments to the current holding position, ensuring that the most relevant functions are always accessible on the exterior buttons.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances operability by allowing photographers to easily access and execute desired functions regardless of camera attitude, reducing the risk of erroneous operations and improving stability during various shooting positions.

Implementation Method 1

an attitude sensor configured to detect an attitude of the image pick up apparatus

Methodology Applied
Scientific EffectAttitude detection: Accelerometer

Data Source

PatentUS12457410B2Image pick up apparatus, and lens apparatus
Publication Date: 2025.10.28 CANON KK
  • US12457410B2 patent drawing
  • US12457410B2 patent drawing
  • US12457410B2 patent drawing

AI summary

A camera comprises a camera body for capturing an image formed by a lens apparatus including lenses, and an attitude sensor. A plurality of buttons (a first button and a second button) is arranged on an exterior portion of the lens apparatus, each of the plurality of buttons is assigned a function to be executed by operating the first button and the second button, respectively, and the assigned function is switched in accordance with the attitude of the camera detected by the attitude sensor.